PT-2025-35720 · Deepseek · Deepseek

Mrqrfilhqfi7Vuwkqbrxdw · CVE-2025-26210 · Published 2025-09-03 · Updated 2025-09-26

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions DeepSeek versions 1.0 through 3.1

Description A Cross-Site Scripting (XSS) issue exists in DeepSeek, potentially allowing a remote attacker to execute arbitrary code through unspecified input fields.

Recommendations Update DeepSeek to a version later than 3.1.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-26210

Affected Products

Deepseek

References · 13

• 🔥 https://youtu.be/IgQwy52FVT4 · Exploit
• 🔥 https://hackmd.io/@MrqrFIlhQFi7vUwkqbrXDw/deepseek · Exploit
• https://osv.dev/vulnerability/CVE-2025-26210 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-26210 · Security Note
• https://twitter.com/UndercodeUpdate/status/1963604367153516605 · Twitter Post
• https://t.me/cveNotify/134667 · Telegram Post
• https://twitter.com/CVEnew/status/1963238381774836211 · Twitter Post
• https://deepseek.com · Note
• https://twitter.com/RequestbinNet/status/1963838357806748086 · Twitter Post
• http://deepseek.com · Note
• https://twitter.com/freedomhack101/status/1963975932089369052 · Twitter Post
• https://t.me/CVEtracker/31599 · Telegram Post
• https://t.me/cveNotify/136579 · Telegram Post